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Consultants
Engineering Staff

Our Team

Gerald P. Bretting, PE

Sr. Consulting Engineer, Partner Emeritus

  • Vehicular Accident Reconstruction

  • Bicycle Product Evaluation

  • Dangerous Condition Evaluation Associated with Two Wheeled Vehicles (Primarily Bicycles)

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Michael A. Callahan, BSME

Senior Consultant, Partner

  • Vehicular Accident Reconstruction

  • Commercial Vehicle EDR and Rapid Response

  • Video Analysis, 3D Animation and Simulation

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Sean G. Snyder, BSPhy

Senior Staff Engineer

  • Vehicular Accident Reconstruction

  • Passenger Vehicle EDR

  • Photogrammetry and Simulation

  • Video Analysis

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Jose E. Tovar, BSME

Senior Staff Engineer

  • Vehicular Accident Reconstruction

  • Passenger & Commercial Vehicle EDR

  • Photogrammetry and Simulation

  • Video Analysis

Alvin Lowi III, PE

Senior Consulting Engineer, Partner

  • Vehicular Accident Reconstruction

  • Automotive Systems and EDR Analysis

  • Mechanical Systems and Failure Analysis

Beau LeBlanc, BSME

Senior Consultant, Partner

  • Vehicular Accident Reconstruction

  • Commercial & Passenger Vehicle EDR

  • Automotive Systems Failure Analysis

  • Complex Photogrammetry and Simulation

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Christopher R. Johnk, PE

Senior Staff Engineer

  • Vehicular Accident Reconstruction

  • Passenger & Commercial Vehicle EDR

  • Automotive Systems Analysis

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Christian T. Dooley, BSME

Senior Staff Engineer

  • Vehicular Accident Reconstruction

  • Passenger & Commercial Vehicle EDR

  • Photogrammetry and Simulation

  • Drone-based Aerial Data Acquisition

David R. Thom, MS

Senior Consultant, Partner Emeritus

  • Analysis of Collision-Involved Safety Helmets and Crash Performance Research

  • Helmet Potential Effect on Injury

  • Helmet Standard Compliance Testing

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Henricus "Harm" P. Jansen, MS

Senior Consultant

  • Vehicular Accident Reconstruction

  • Two Wheel Vehicle Accident Reconstruction Specialty

  • Safety and Human Factors of Two Wheel Vehicle Handling/Riding

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D. Michael Sweet, PE

Senior Staff Engineer

  • Vehicular Accident Reconstruction and EDR Analysis

  • Pedestrian and Two-Wheeled Vehicle Accident

  • Bicycle Operation Standard of Care and Dangerous Conditions

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Shayne A. Sharp, BSME

Staff Engineer

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Ryan V. Porter, BSME

Staff Engineer

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Jarod B. Hodge

Scan Data Technician

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David M. Wells, BSME

Support Staff

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Vladimir V. Shkolkin, BSME

Staff Engineer

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Andres T. Rodriguez, BSME

Staff Engineer

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Ryan N. McKinney

Scan Data Technician

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Ruben A. Ortiz

Engineering Support Staff

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Blake L. Newton, BSME

Staff Engineer

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Ryan W. Wiley

3D Data Group Manager

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Le Sun

Visualization Manager

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Lisa M. Dawsey

Office Manager, Sr. Executive Assistant

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Kathy M. Braun

Executive Assistant 

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Zaida N. Nava, MS, SHRM-CP

Human Resources Manager

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Christopher D. Wilhelm, MSME

Chief Executive Officer, Partner

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Kathrina T. Boyles

Senior Executive Assistant

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Khalayla I. Thompson

Intake Coordinator

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April M. Rotter, MBA

Accounting Manager

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Drew K. Sauvola

Executive Assistant 

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Jeffrey J. Bagge

IT & Facilities Manager

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E. Jennifer Wahba, MBA

Chief Financial Officer

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